public class LocateExpressionStateObject extends AbstractTripleEncapsulatedExpressionStateObject
LOCATE function returns the position of a given string within a string,
starting the search at a specified position. It returns the first position at which the string
was found as an integer. The first argument is the string to be located; the second argument is
the string to be searched; the optional third argument is an integer that represents the string
position at which the search is started (by default, the beginning of the string to be searched).
The first position in a string is denoted by 1. If the string is not found, 0 is returned. The
LENGTH function returns the length of the string in characters as an integer.
expression ::= LOCATE(string_primary, string_primary [, simple_arithmetic_expression])LocateExpressionFIRST_STATE_OBJECT_PROPERTY, SECOND_STATE_OBJECT_PROPERTY, THIRD_STATE_OBJECT_PROPERTY| Constructor and Description |
|---|
LocateExpressionStateObject(StateObject parent)
Creates a new
LocateExpressionStateObject. |
LocateExpressionStateObject(StateObject parent,
StateObject firstStateObject,
StateObject secondStateObject)
Creates a new
LocateExpressionStateObject. |
LocateExpressionStateObject(StateObject parent,
StateObject firstStateObject,
StateObject secondStateObject,
StateObject thirdStateObject)
Creates a new
LocateExpressionStateObject. |
LocateExpressionStateObject(StateObject parent,
java.lang.String firstJpqlFragment,
java.lang.String secondJpqlFragment)
Creates a new
LocateExpressionStateObject. |
LocateExpressionStateObject(StateObject parent,
java.lang.String firstJpqlFragment,
java.lang.String secondJpqlFragment,
java.lang.String thirdJpqlFragment)
Creates a new
LocateExpressionStateObject. |
| Modifier and Type | Method and Description |
|---|---|
void |
accept(StateObjectVisitor visitor)
Visits this
StateObject by the given visitor. |
LocateExpression |
getExpression()
Returns the actual parsed object if this
StateObject representation of the JPQL query
was created by parsing an existing JPQL query. |
protected java.lang.String |
getFirstQueryBNFId()
Returns the unique identifier of the BNF that will be used to parse a JPQL fragment as the
first encapsulated expression.
|
java.lang.String |
getIdentifier()
Returns the JPQL identifier of the expression represented by this
AbstractSingleEncapsulatedExpressionStateObject. |
protected java.lang.String |
getSecondQueryBNFId()
Returns the unique identifier of the BNF that will be used to parse a JPQL fragment as the
second encapsulated expression.
|
protected java.lang.String |
getThirdQueryBNFId()
Returns the unique identifier of the BNF that will be used to parse a JPQL fragment as the
third encapsulated expression.
|
void |
setExpression(LocateExpression expression)
Keeps a reference of the
parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects. |
addChildren, getFirst, getSecond, getThird, hasFirst, hasSecond, hasThird, isEquivalent, parseFirst, parseSecond, parseThird, setFirst, setSecond, setThird, toTextEncapsulatedExpressiontoTextInternalacceptUnknownVisitor, acceptUnknownVisitor, addProblems, addPropertyChangeListener, areEquivalent, buildProblem, buildProblem, buildStateObject, buildStateObjects, checkParent, children, decorate, equals, findIdentificationVariable, firePropertyChanged, getChangeSupport, getDeclaration, getDecorator, getGrammar, getManagedTypeProvider, getParent, getQueryBuilder, getRoot, getType, getType, getTypeHelper, getTypeRepository, hashCode, initialize, isDecorated, parent, parent, parent, removePropertyChangeListener, setExpression, setParent, toString, toString, toStringInternal, toStringItems, toTextpublic LocateExpressionStateObject(StateObject parent)
LocateExpressionStateObject.parent - The parent of this state object, which cannot be nulljava.lang.NullPointerException - The given parent cannot be nullpublic LocateExpressionStateObject(StateObject parent, StateObject firstStateObject, StateObject secondStateObject)
LocateExpressionStateObject.parent - The parent of this state object, which cannot be nullfirstStateObject - The StateObject of the first expressionsecondStateObject - The StateObject of the second expressionjava.lang.NullPointerException - The given parent cannot be nullpublic LocateExpressionStateObject(StateObject parent, StateObject firstStateObject, StateObject secondStateObject, StateObject thirdStateObject)
LocateExpressionStateObject.parent - The parent of this state object, which cannot be nullfirstStateObject - The StateObject of the first expressionsecondStateObject - The StateObject of the second expressionthirdStateObject - The StateObject of the third encapsulated expressionjava.lang.NullPointerException - The given parent cannot be nullpublic LocateExpressionStateObject(StateObject parent, java.lang.String firstJpqlFragment, java.lang.String secondJpqlFragment)
LocateExpressionStateObject.parent - The parent of this state object, which cannot be nullfirstJpqlFragment - The string representation of the first encapsulated expression to
parse and to convert into a StateObject representationsecondJpqlFragment - The string representation of the second encapsulated expression to
parse and to convert into a StateObject representationjava.lang.NullPointerException - The given parent cannot be nullpublic LocateExpressionStateObject(StateObject parent, java.lang.String firstJpqlFragment, java.lang.String secondJpqlFragment, java.lang.String thirdJpqlFragment)
LocateExpressionStateObject.parent - The parent of this state object, which cannot be nullfirstJpqlFragment - The string representation of the first encapsulated expression to
parse and to convert into a StateObject representationsecondJpqlFragment - The string representation of the second encapsulated expression to
parse and to convert into a StateObject representationthirdJpqlFragment - The string representation of the third encapsulated expression to
parse and to convert into a StateObject representationjava.lang.NullPointerException - The given parent cannot be nullpublic void accept(StateObjectVisitor visitor)
StateObject by the given visitor.visitor - The visitor to visit this objectpublic LocateExpression getExpression()
StateObject representation of the JPQL query
was created by parsing an existing JPQL query.getExpression in interface StateObjectgetExpression in class AbstractTripleEncapsulatedExpressionStateObjectStateObject
or null when the JPQL query is manually created (i.e. not from a string)protected java.lang.String getFirstQueryBNFId()
getFirstQueryBNFId in class AbstractTripleEncapsulatedExpressionStateObjectpublic java.lang.String getIdentifier()
AbstractSingleEncapsulatedExpressionStateObject.getIdentifier in class AbstractEncapsulatedExpressionStateObjectprotected java.lang.String getSecondQueryBNFId()
getSecondQueryBNFId in class AbstractTripleEncapsulatedExpressionStateObjectprotected java.lang.String getThirdQueryBNFId()
getThirdQueryBNFId in class AbstractTripleEncapsulatedExpressionStateObjectpublic void setExpression(LocateExpression expression)
parsed object object, which should only be
done when this object is instantiated during the conversion of a parsed JPQL query into
StateObjects.expression - The parsed object representing a LOCATE
expression